402536736 has 384 divisors, whose sum is σ = 1470873600. Its totient is φ = 104509440.

The previous prime is 402536689. The next prime is 402536741. The reversal of 402536736 is 637635204.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 402536736.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3562216 + ... + 3562328.

It is an arithmetic number, because the mean of its divisors is an integer number (3830400).

Almost surely, 2^402536736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402536736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (735436800).

402536736 is an abundant number, since it is smaller than the sum of its proper divisors (1068336864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402536736 is a wasteful number, since it uses less digits than its factorization.

402536736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The square root of 402536736 is about 20063.3181702330. The cubic root of 402536736 is about 738.3605878830.

The spelling of 402536736 in words is "four hundred two million, five hundred thirty-six thousand, seven hundred thirty-six".